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Alline Gouvea Martins Rodrigues, Rossana Pacheco da Costa Proença, Maria Cristina Marino Calvo, Giovanna Medeiros Rataichesck Fiates
The present study investigated the prevalence of overweight/obesity and its relationship with behavioral and food choice characteristics among consumers at a restaurant serving buffet-by-weight in the city of Florianopolis, southern Brazil, during lunch time. An analytical cross-sectional survey of 675 consumers aged 16-81 years was conducted. The measures included anthropometric, socio-demographic, and behavioral characteristics, as well as portion size and a photographic record of the plate chosen by the consumer...
October 2012: Appetite
David Marchiori, Esther K Papies, Olivier Klein
People consistently over-eat when served a large compared with a small (appropriate) portion of food. However, the mechanism underlying this so-called portion size effect is not well understood. We argue that the process of anchoring and adjustment naturally describes this effect, such that the size of a presented portion works as an anchor that strongly influences consumption. The classical anchoring and adjustment paradigm was applied to six hypothetical eating situations. Participants were asked to imagine being served either a small or a large portion of food (i...
October 2014: Appetite
Salwa A Albar, Nisreen A Alwan, Charlotte E L Evans, Janet E Cade
The prevalence of obesity has increased simultaneously with the increase in the consumption of large food portion sizes (FPS). Studies investigating this association among adolescents are limited; fewer have addressed energy-dense foods as a potential risk factor. In the present study, the association between the portion size of the most energy-dense foods and BMI was investigated. A representative sample of 636 British adolescents (11-18 years) was used from the 2008-2011 UK National Diet and Nutrition Survey...
September 14, 2014: British Journal of Nutrition
B J Rolls
Systematic studies have shown that providing individuals with larger portions of foods and beverages leads to substantial increases in energy intake. The effect is sustained over weeks, supporting the possibility that large portions have a role in the development of obesity. The challenge is to find strategies to effectively manage the effects of portion size. One approach involves teaching people to select appropriate portions and to use tools that facilitate portion control. Although tools such as portion-control plates have been shown in several randomized trials to improve weight loss, limited data are available on whether education and tools lead to long-term changes in eating behavior and body weight...
July 2014: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Carmen Piernas, Barry M Popkin
BACKGROUND: Larger portion sizes of foods and beverages could affect overall energy intake at meals and promote overeating. OBJECTIVE: We investigated trends in portion sizes of energy-dense foods and energy intakes at eating occasions in US children and adolescents. DESIGN: Four US nationally representative surveys from 1977 to 2006 were analyzed (n = 31,337). We measured trends in portion sizes (kcal, g, and mL) of selected foods [sugar-sweetened beverages (SSBs), salty snacks, desserts, French fries, burgers, pizzas, and Mexican fast foods] and energy intake (kcal) at eating occasions during which selected foods were consumed...
November 2011: American Journal of Clinical Nutrition
Lisa R Young, Marion Nestle
The greater energy content of larger food portions could be contributing to the increasing prevalence of overweight. Prevention guidelines recommend "sensible" portion sizes but do not define them. The US Department of Agriculture (USDA) defines standard serving sizes for dietary guidance, and the Food and Drug Administration (FDA) defines standard servings for food labels. To use these standards in counseling, nutritionists must know the sizes of portions available in the marketplace. We determined marketplace portion sizes, identified changes in these sizes with time, and compared current marketplace portions with federal standards...
February 2003: Journal of the American Dietetic Association
Natalie M Reily, Lenny R Vartanian
Larger portion sizes have consistently been shown to lead to greater food intake. However, studies of the portion size effect typically provided participants with a single portion of food at a time without any objective information about the size of the portion, and hence failed to consider the potential significance of contextual size information. In order to investigate whether contextual size information moderates the portion size effect, participants were served small or large portions of pasta for lunch in the presence or absence of contextual size information...
October 1, 2016: Appetite
David R Just, Brian Wansink
Labels such as 'Large' or 'Super-size' are often used to describe portion sizes. How do these normative labels influence consumer choice and how much they ultimately either consume or waste? Although one might believe that firms use normative labels to impact choice behavior through loss aversion, a field experiment shows consumer's willingness to pay is inconsistent with a loss aversion explanation. Although portions were clearly visible, individuals appeared to use the labels as objective information about their size...
July 2014: Health Economics
Wendy E Barrington, Shirley A A Beresford, Thomas D Koepsell, Glen E Duncan, Anne Vernez Moudon
BACKGROUND: Understanding mechanisms linking neighborhood context to health behaviors may provide targets for increasing lifestyle intervention effectiveness. Although associations between home neighborhood and obesogenic behaviors have been studied, less is known about the role of worksite neighborhood. PURPOSE: To evaluate associations between worksite neighborhood context at baseline (2006) and change in obesogenic behaviors of adult employees at follow-up (2007-2009) in a worksite randomized trial to prevent weight gain...
January 2015: American Journal of Preventive Medicine
James F Sallis, Karen Glanz
CONTEXT: Environmental, policy, and societal changes are important contributors to the rapid rise in obesity over the past few decades, and there has been substantial progress toward identifying environmental and policy factors related to eating and physical activity that can point toward solutions. This article is a status report on research on physical activity and food environments, and it suggests how these findings can be used to improve diet and physical activity and to control or reduce obesity...
March 2009: Milbank Quarterly
Mark S Kaplan, Nathalie Huguet, Jason T Newsom, Bentson H McFarland
BACKGROUND: Newly arrived Hispanic immigrants are generally healthier than the U.S.-born population, but this distinction tends to diminish over time as immigrants adapt to a new and different sociocultural environment. OBJECTIVE: This study sought to determine whether length of residence in the United States was associated with obesity (body mass index [BMI]>30 kg/m(2)) among Hispanic immigrants. METHODS: Data for 2420 foreign-born Hispanic adults aged > or =18 years were obtained from the 1998 National Health Interview Survey...
November 2004: American Journal of Preventive Medicine
Julie Park, Dowell Myers, Dennis Kao, SeongHee Min
We re-examine the pace of rising obesity among Hispanic immigrants and the effects associated with longer duration in the US, or what is referred to as unhealthy assimilation, the convergence of immigrant health to a less healthy native-born standard. Consistent with previous research, we find that across all race-ethnic groups, immigrants tend to be less obese than native-born persons. Second, obesity is clearly on the rise, with obesity rates increasing for both immigrant and native-born populations between 1995 and 2005...
December 2009: Social Science & Medicine
C Peter Herman, Janet Polivy, Lenny R Vartanian, Patricia Pliner
Large portion sizes are frequently blamed for the obesity epidemic. In this paper, we examine the culpability of large portion sizes. It is true that portion sizes have increased during the obesity epidemic, but there is as yet little evidence that exposure to large portions produces significant weight gain. Furthermore, some evidence argues against the role of large portions in the obesity epidemic. For instance, the epidemic is largely a matter of weight gain among the upper half of the population weight distribution, whereas large portions appear to have an indiscriminate effect on food intake...
March 15, 2016: Physiology & Behavior
H B Lewis, S E Forwood, A L Ahern, K Verlaers, E Robinson, S Higgs, S A Jebb
BACKGROUND: Portion size is an important component of dietary advice for weight control, but little is known about what portion sizes people consider 'normal'. This study determined the effect of body mass index (BMI), gender, dietary restraint and liking of the food on personal and social portion size norms for a range of foods and the degree of certainty over the norms. METHODS: Thirty lean (BMI 20-25 kg m(-)(2)) and 30 obese (BMI 30-35 kg m(-)(2)) men and women (aged 18-60 years) viewed 17 different portion sizes of 12 foods on a computer screen on two occasions a week apart...
August 2015: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Richard Mattes, Gary D Foster
"Research Issues: The Food Environment and Obesity" is an article series commissioned by the American Society for Nutrition and The Obesity Society in an attempt to consider the state of understanding on this topic and identify key knowledge gaps. Roberts and Karl focus on the role of energy density in the regulation of energy intake and body weight and offer recommendations for prioritizing research. Finkelstein et al examine food and beverage purchases as a function of price changes and conclude that targeted food taxes and subsidies alone are unlikely to substantially affect obesity...
December 2014: American Journal of Clinical Nutrition
M Barbara E Livingstone, L Kirsty Pourshahidi
Portion size is a key environmental driver of energy intake, and larger-than-appropriate portion sizes could increase the risk of weight gain. Multiple acute, well-controlled laboratory studies, supported by data from free-living settings, demonstrated that portion size has a powerful and proportionate effect on the amount of food consumed. Of particular importance is that bouts of overeating associated with large portions are sustained and not followed by a compensatory reduction in energy intake. The positive effect of portion size on energy intake was demonstrated for different types of foods and beverages, and is particularly pronounced with energy-dense foods...
November 2014: Advances in Nutrition
Jennifer L Pomeranz, Kelly D Brownell
The importance of obesity as a public health problem has led to a number of proposed policy solutions, some of which — such as taxes on sugar-sweetened beverages — are highly controversial and have been opposed strongly by the food industry. One such measure is the proposal by the New York City..
October 11, 2012: New England Journal of Medicine
C Boutin-Foster, A Rodriguez
This study evaluated the psychosocial correlates of being overweight or obese among US born and immigrant Latino adults. Depressive symptoms were measured with the Center for Epidemiological Studies Depression Scale (CES-D10). Of the 177 participants, 64% were either overweight or obese, of which, 51% also had comorbid depressive symptoms. On bivariate analyses, these participants were younger (OR = 2.4, 95% CI = 1.5-5.2), female (OR = 2.5, 95% CI = 1.3-4.6), US born (OR = 6, 95% CI = 1.3-9.0), more likely to have lived in the US 15 or more years (OR = 2...
October 2009: Journal of Immigrant and Minority Health
Katarina M Sussner, Ana C Lindsay, Mary L Greaney, Karen E Peterson
Exposure to obesogenic environments in the U.S. may foster development of overweight in immigrants with greater acculturation. Few studies document mechanisms of the acculturation process from immigrants' own perspectives or describe implications on the children of immigrants. Focus groups and in-depth interviews were conducted with immigrant Latina mothers (N = 51) examining mothers' beliefs, attitudes and practices related to early child feeding and weight. Focus group participants completing the Marin Acculturation Scale more closely identified with Latino culture, although the mean score (2...
December 2008: Journal of Immigrant and Minority Health
Carmen R Isasi, Guadalupe X Ayala, Daniela Sotres-Alvarez, Hala Madanat, Frank Penedo, Catherine M Loria, John P Elder, Martha L Daviglus, Janice Barnhart, Anna Maria Siega-Riz, Linda Van Horn, Neil Schneiderman
BACKGROUND: The study examined the association of obesity with acculturation in a large and diverse sample of US Hispanic/Latino adults. METHODS: The Hispanic Community Health Study (HCHS)/Study of Latinos (SOL) is a community-based cohort study of Hispanic/Latino adults aged 18-74 years (N = 16,415) from four urban areas. Height and weight were directly measured using a standardized protocol. Acculturation was assessed by the Short Acculturation Scale for Hispanics (SASH)...
2015: Journal of Obesity
2016-10-01 21:02:10
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